Loans, Overdrafts and Long-Term Debt - Additional Information (Detail) (USD $) In Millions, unless otherwise specified		1 Months Ended				6 Months Ended
	Jul. 28, 2012	May 24, 2011 Revolving Credit Facility	Jul. 28, 2012 Revolving Credit Facility	Jan. 28, 2012 Revolving Credit Facility	Jul. 30, 2011 Revolving Credit Facility	Jul. 28, 2012 Letter of Credit	Jul. 28, 2012 Financial Standby Letter of Credit	Jan. 28, 2012 Financial Standby Letter of Credit	Jul. 30, 2011 Financial Standby Letter of Credit
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 400
Debt instruments maturity date		June 2013				May 2016
Debt instrument, maturity period		5 years				5 years
Credit facility, increase						200
Leverage ratio, maximum	2.50
Fixed charge coverage ratio, minimum	1.40
Credit facility outstanding amount			0	0	0
Intra-period borrowings	0
Letter of credit outstanding amount							$ 8.2	$ 8.2	$ 5.5